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7049/7149-T73 Hand forging: MIL-HDBK-5J Design Allowables

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Material class	Aluminum
Alloy / temper / form	7049/7149 / T73 / Hand forging
Specifications	AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.7.3.0, Table 3.7.3.0(d) (pdf page 308 of the chapter file)
Dimension bands	3

Design Mechanical and Physical Properties (room temperature)

As printed in the handbook table. Bases: A and B are statistical minimums (99 % and 90 % probability at 95 % confidence), S the specification minimum. Grain directions: L longitudinal, LT long transverse, ST short transverse.

Dimension band		2.001–3.000 in	3.001–4.000 in	4.001–5.000 in
Specification		AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771	AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771	AMS-QQ-A-367, AMS 4111, AMS 4320, and AMS-A-22771
Basis		S	S	S
F_tu, ksi	L	71	69	67
	LT	71	69	67
	ST	69	67	66
F_ty, ksi	L	61	59	56
	LT	59	57	56
	ST	58	56	55
F_cy, ksi	L	60	58	57
	LT	61	59	57
	ST	61	59	58
F_bru (e/D = 1.5), ksi	L	102	100	97
	LT	102	100	97
	ST	102	100	97
F_bru (e/D = 2.0), ksi	L	134	130	126
	LT	134	130	126
	ST	134	130	126
F_bry (e/D = 1.5), ksi	L	81	79	77
	LT	81	79	77
	ST	81	79	77
F_bry (e/D = 2.0), ksi	L	96	92	91
	LT	96	92	91
	ST	96	92	91
e, %	L	9	8	7
	LT	4	3	3
	ST	3	2	2
E, Msi		10.2	10.2	10.2
E_c, Msi		10.6	10.6	10.6
G, Msi		3.9	3.9	3.9
ν		0.33	0.33	0.33

Effect of Temperature

The handbook maps no temperature-effect figure to this table.

Other 7049/7149 Tables

7049/7149-T73 Die forging (Table 3.7.3.0(c))
7049/7149-T73511 Extrusion (Table 3.7.3.0(e))

Source and Use

U.S. Department of Defense (2003). Metallic Materials and Elements for Aerospace Vehicle Structures. MIL-HDBK-5J, 31 January 2003 (public domain). The values are the handbook's design allowables as extracted from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ. No warranty is given.